William butterfield



(No Model.)

W. BUTTERFIELD. BUTT ADJUSTER FOR SELF BINDING HARVESTERS.

No. 605,388 Patented June 7, 1898" WJnesses-es v I I j gp airs iiiWILLIAM BUTTERFIELD, OF CHICAGO, ILLINoIs, ASSIGNOR To run DEERING:IIAnvnsrER COMPANY, or sAM PLACE.

BUTT-ADJUSTER FO-R SELF-BINDING HARVESTERS,

srncrrrca'rron forming art of Letters Patent No. 605,388, dated June '7,1898.

Applicationfiled Jnne Zl, 1897.-

To all whom it may concern: 7

Be it known that I, WILLIAM BUTTERFIELD, of Chicago, in the county ofCook and State of Illinois, have invented certain new and usefulImprovements inv Butt-Adjusters for Self-Bindin g Harvesters, of whichthe following is a full description, reference being had to theaccompanying drawings, in which Figure 1 is a front elevation of as muchof a self-binding harvester as is necessary to illustrate myinvention.Fig. 2 is a plan view with the grain-cover indicated by a dotted line.Fig. 3 is a sectional elevation on the line 3 3 of Fig. 1.

The butt-adjusting mechanism is located along the front edge of thebinder-table B, as usual, between the elevator O and the binderframe D,and serves to hasten the butts of the grain down the table to theirfinal position thereon.

E is the grain-cover at the upper end of the elevator. The elevator hasthe usual canvases e and 6'.

A is the adju'ster-bracket, in which is j ournaled the adjustercrank-shaft a, preferably adapted to receive rotation from the lowerelevator-roller by means of the bevel-gears'e? and c At its upper end isformed a double crank a In the said bracket is also preferably pivoted aradius-rod A. Hung upon wrists on the double crank are butt-adjustingboards A and A by means of suitable arms a and (L The lower ends of theboards are supported by radius-links a. and a, said links being pivotedupon the swinging end of the radius-rod A and the boards being pivotedconveniently thereto by any suitable 1neans,those shown being bracketsriveted thereto. Conveniently to the radius-rod is pivoted the usual adjuster-lever F, extending diagonally back to the top of the elevatorwithin convenient reach of the driver and provided with the usual meansfor holding it in any given position of adjustment. The double cranksare substantially on opposite sides of the shaft a, so that one of theboards is acting upon the grain aggressively when the other is makiri ga return movement preparatory to a succeeding aggressive movement. As iswell known, in some conditions of grain there is a tendency for theupper ele- Serial No. Mlfldl. (N0 model.)

v'ator-canvas to carry bunches of straw back between'it-self and thegrain-cover and choke the elevator. Siniilarly'the lower elevatorcanvassometimes carries straws down between itself and the upper edge of thebinding-table. The upper board can be of such length as to approach'veryclose to the upper elevator roller and the space thereabove where thestraws sometimes choke, so as to positively take the grain away from thesame without allowing it to be carried over. For that purpose its endnearest the roller is provided with an aggressive toothed slat co Thelower board, hung upon the lower crank, while having preferably the samethrow as the upper one, can be proportioned difierently, so

as to take the grainfrom the lower elevatorroller before it is permittedto be carried downward below the table. It also has a claw or aggressivetoothed slat at its upper end. Both boards are provided with the usualaggressiveslats a along their length to aid in positively carrying-thegrain down.

To the adjoining edges of the adj usterboards are attached plates a anda, extending toward the front of the machine, the purpose of which is toprevent straws from getting between the boards as they move intheirorbital paths.

i It is foundin; practice that the action of my'up'per board upontheupper portion of themass of grain confined between the deck andgrain-cover tends to move the portion that lies below. "For instance, ifthe board A 'alone wereused the whole mass of grain would be moved inthe direction of the binding receptacle proper, the action of the boardA would carry all straws with which it came in contact, and theagitation and for- 0 ward movement of those would so inflluenee all thestraws beneath as to cause them to move down the table. In other words,the mass of straws being free to move and partially influenced bygravity, movement of the 5 upper stratum would carry the lower stratumtherewith to a very great extent. Theconverse is true-that if the lowerone of the two boards only were used the straws with which it came incontact would be moved deliveryward and the straws above would also beinfluenced to move in the same direction.

The cooperation of the two boards is such as to not only move the strawsendwise for adjusting them so as to be centrally bound, but to in effecthave two feeding-strokes down.- ward to every revolution of thecrank-shaft carrying them. This double action is found in practice to bea very material benefit.

I am aware that butt-adjusters have been made consisting of a series oftoothed bars moved by cranks and adapted to be thrust through slots inthe frame guiding them, in which case there was no means for producing abeating effect upon the butts of the entire mass of grain in thereceptacle;'but only teeth that at various horizons, as it were, abovethe binder-table should dig into the mass, and thus feed it by clawingactions. While this clawing action tends to Work the grain down, it doesnot do so in a satisfactory vented by the alternate strokes of the twoparts, one acting upon the butt of the gavel while the other is makingits return movement.

I claim- 1. The combination with the elevators the binding-table and thegrain-cover, of a grainadjusting device consisting of a plurality oforbitally-moved boards arranged one above the other and adapted to movein close relation to each otherand also adapted to act alternately, andthus engage the butts of the straws in the receptacle, move them endwiseand advance them deliveryward, each of said boards having a plateattached to the edge adjoining its fellow board, substantially asdescribed. I

2. The combination with the elevators, the. binding-table, and thegrain-cover, of a grainadjusting device consisting wholly of twoorbitallymoving boards placed edgewise in close proximity to each other,the plane of saidboards being substantially perpendicular to thebinding-table, and said boards being operated so as to act alternatelyupon the butts of the straw upon the table, to simultaneously move thesame endwise and sidewise,whereby only one portion of the adjuster isactive upon the grain at a time, the other portion being meanwhile outof action, substantially as described.

3. The combination with the elevating-conveyers, the binding-table,andthe grain-cover, of a grain-adj usting device consisting wholly oforbitally-moving boards placed edgewise in close proximity to oneanother, the plane of said boards being substantially perpendicular tothe binder-table, and said boards being operated so that, although theentire face of the adjuster is constantlyin motion, the individualboards of which it is composed act alternately upon the butts of thestraw upon the table to simultaneously move the same endwise andsidewise, substantially as described.

4. In a grain-binding harvester, the combination with thereceiving-table, the graincover, and the upper and lowerelevating-conveyors, of a grain-adj usting device composed wholly of aplurality of orbitallymoving boards, one placed immediately above theother, the lower board located and adapted to sweep in close contactwith the table, and the upper board located and adapted to sweep acrossthe plane of the lower conve-yer toward and near the end of the upperconveyor in close contact ,with the cover, and the two boards thuscooperating to clear the space between the roller of the upper conveyerand the overhead cover and between the roller of the lower conveyer andthe edge of the receiving-table, substantially as described.

5. In a grain-binding harvester the combination with the binderreceivingtable, graincover and upper and lower elevating-conveyers, of agrain-adjusting device composed of two orbitally-moving boards, oneabove the other, the lower one adapted to clear the space between thegrain-receiving table and the lower conveyor-roller, and the upper oneto keep clear the space between the upper elevator-roller and thegrain-cover, and plates attached to the adjoining edges of said boardsand projecting outwardly and adapted to prevent straws from gettingbetween said boards, substantially as described.

WILLIAM BUTTERFIELD.

Witnesses:

CHARLES A. STEWARD, ARTHUR JOHNSON.

